👉 In mathematics, an "inequivalvular" refers to a situation where two or more quantities are equal but have different values. This is often used in contexts such as physics, chemistry, economics, and other fields to describe situations in which two or more quantities can be compared without necessarily being equivalent. The concept of "inequivalvual" was introduced by the mathematician John Wallis in his work on trigonometry, where he defined that two angles are equal if and only
